What is the bra size 30DD? What exactly is this bra size called 30DD? First, it's a combination of a band size and a cup size. "30" refers to the band size and the double D (or DD) refers to the cup size.Read more...
Some women wonder if a 30DD bra size is a big bra size. Well, the 30-band size is a small band size, but the DD cup size in a 30DD is the same cup volume as a 32D and a 34C size bra. Also of note, is the fact that the cup size DD can also be called an E cup size in European brands, so a 30DD in U.S. sizing would be a 30E in Chantelle, Simone Perele and Panache bras. This can be confusing for women when trying to find their 30DD cup size in a European brand. I've recognized this problem – thus, HerRoom has made finding your true size simple with our exclusive Universal Cup sizing™ (UCS®). Cup sizes DD and E combined are equal to a UCS® D2 cup size. So, all you need to do is search 30D2 at HerRoom and you'll find all the bras, swimwear, shapewear and more that come in your size.
What are the sister sizes for 30DD? There are several. Every bra size has a set of sister sizes. These are bra sizes where either the band, cup or both are just one size up or down from 30DD. For example, a 30DD or 30E bra size has sister sizes of 28DDD (D3) and 32D. So, these three bra sizes – 28DDD, 30DD and 32D – all represent bras with the same cup size (when you go up a band size, you need to go down a cup size to maintain your cup volume) but different band sizes. A 28DDD has a smaller band than a 30DD and a 32D has a larger band than a 30DD. If a 30DD (D2) and 30E bra size fits you, this generally means your under-breast measurement is 25 to 26 inches and your over bust measurement at its fullest point is around 36 inches.
Bra size 30DD is 65E in Europe and Japan, 80E in France, and 8E in Australia.
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